Critical Reasoning (CR) | Traditionally, the most highly sought cars have been the "sports cars"

Himikemcgarry
Could you please clear my doubt.

option D, the OA says that: Because of additional safety requirements, the frame and doors of Zincstone Motors' standard two-door models were three times as expensive as standard four-door frame and doors.

My doubt is that we are assuming that both 2 door and 4 door models sell for the same price, the manufacturers could price the 2 door models considerably higher than the 4 door models to offset this extra cost.
The question stem